$308 Find Cheap Flights from Reagan Washington National Airport to United Kingdom

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Reagan-National to the United Kingdom departing on 1/24. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Cheap Flights from Reagan-National to the United Kingdom

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
London
London2 stops$577
Edinburgh
Edinburgh3 stops$653
Manchester
Manchester2 stops$607
Birmingham
Birmingham2 stops$613
Belfast
Belfast2 stops$643
Inverness
Inverness2 stops$518
Bristol
Bristol3 stops$746
Aberdeen
Aberdeen2 stops$628
Leeds
Leeds2 stops$671
Liverpool
Liverpool2 stops$861
Cardiff
Cardiff2 stops$742
London
London2 stops$577
Edinburgh
Edinburgh3 stops$653
Manchester
Manchester2 stops$607
Birmingham
Birmingham2 stops$613
Belfast
Belfast2 stops$643
Inverness
Inverness2 stops$518
Bristol
Bristol3 stops$746
Aberdeen
Aberdeen2 stops$628
Leeds
Leeds2 stops$671
Liverpool
Liverpool2 stops$861
Cardiff
Cardiff2 stops$742

Book Cheap Reagan-National to the United Kingdom Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Reagan-National to the United Kingdom that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Reagan-National to the United Kingdom

Tue, Jan 20 - Tue, Jan 27
British Airways Logo
1:35 pm - 9:40 am
DCA
-
INV
15h 05m2 stops
British Airways Logo
12:45 pm - 10:03 am
INV
-
DCA
26h 18m2 stops
$518British Airways
Wed, Apr 15 - Wed, Apr 22
American Airlines Logo
12:30 pm - 9:30 am
DCA
-
INV
16h 00m2 stops
American Airlines Logo
7:35 am - 8:04 pm
INV
-
DCA
17h 29m2 stops
$532American Airlines
Mon, Jan 12 - Sun, Jan 18
Air Canada Logo
4:10 pm - 7:10 am
DCA
-
LHR
10h 00m1 stop
Air Canada Logo
6:50 am - 3:33 pm
LHR
-
DCA
13h 43m2 stops
$590Air Canada
Fri, Jan 30 - Tue, Feb 10
American Airlines Logo
5:44 pm - 7:30 am
DCA
-
LGW
32h 46m1 stop
American Airlines Logo
11:20 am - 5:14 pm
LGW
-
DCA
34h 54m1 stop
$606American Airlines
Tue, Feb 24 - Tue, Mar 3
British Airways Logo
8:00 am - 7:30 am
DCA
-
LGW
18h 30m1 stop
British Airways Logo
11:20 am - 11:36 pm
LGW
-
DCA
17h 16m1 stop
$612British Airways
Tue, Jan 20 - Tue, Jan 27
Air Canada Logo
11:05 am - 12:35 pm
DCA
-
BHX
20h 30m2 stops
Air Canada Logo
6:00 am - 3:33 pm
BHX
-
DCA
14h 33m2 stops
$619Air Canada
Fri, Jan 30 - Tue, Feb 17
Iberia Logo
5:30 pm - 7:00 pm
DCA
-
LGW
20h 30m2 stops
Iberia Logo
11:45 am - 10:35 pm
LGW
-
DCA
15h 50m2 stops
$639Iberia
Tue, Apr 21 - Wed, Apr 29
JetBlue Logo
6:55 pm - 9:15 am
DCA
-
EDI
9h 20m1 stop
JetBlue Logo
12:10 pm - 7:59 pm
EDI
-
DCA
12h 49m1 stop
$656JetBlue
Tue, Apr 21 - Wed, Apr 29
JetBlue Logo
3:55 pm - 9:15 am
DCA
-
EDI
12h 20m1 stop
JetBlue Logo
12:10 pm - 7:59 pm
EDI
-
DCA
12h 49m1 stop
$657JetBlue
Wed, Jan 14 - Wed, Jan 28
Iberia Logo
5:45 pm - 2:05 pm
DCA
-
LCY
15h 20m2 stops
Iberia Logo
7:50 am - 6:54 pm
LCY
-
DCA
16h 04m2 stops
$697Iberia
Booking Insights

KAYAK's insights & trends for Reagan-National to the United Kingdom flights

Get data-powered insights and trends into flights from Reagan-National to the United Kingdom to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Washington, D.C. Reagan-National Airport to the United Kingdom?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Washington, D.C. Reagan-National Airport to the United Kingdom, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Washington, D.C. Reagan-National Airport to the United Kingdom is September, when tickets cost $630 (return) on average. On the other hand, the most expensive months are December and June, when the average cost of round-trip tickets is $1,217 and $991 respectively.

What’s the cheapest day of the week to fly from Reagan Washington National Airport to United Kingdom?

The average price of all round-trip flights from Washington, D.C. Reagan-National Airport to the United Kingdom clicked on KAYAK for each day over the last 12 months.

For Reagan Washington National Airport to United Kingdom, Tuesday is the cheapest day to fly on average and Sunday is the most expensive. Flying from United Kingdom back to Reagan Washington National Airport, the best deals are generally found on Saturday, with Sunday being the most expensive.

How far in advance should I book a flight from Washington, D.C. Reagan-National Airport to the United Kingdom?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Washington, D.C. Reagan-National Airport to the United Kingdom, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Washington, D.C. Reagan-National Airport to the United Kingdom, you should book around 3 weeks before departure, which saves you about 16% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 22 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$316
Best time to beat the crowds but there is an average 14% increase in price.
Most popular time to fly and prices are also 30% lower on average.
Flight from Reagan Washington National Airport to Glasgow

FAQs - booking United Kingdom flights

  • How does KAYAK find such low prices on flights from Reagan Washington National Airport to United Kingdom?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Reagan Washington National Airport to United Kingdom.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Reagan Washington National Airport to United Kingdom?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Reagan Washington National Airport to United Kingdom is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Reagan Washington National Airport to United Kingdom?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Reagan Washington National Airport to United Kingdom with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Reagan Washington National Airport to United Kingdom?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Reagan Washington National Airport to United Kingdom up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to the United Kingdom?

    The cheapest time of day to fly to the United Kingdom is generally in the morning, when round-trip flights cost $765 on average. Morning departures are around 2% cheaper than evening flights, on average. The most expensive time of day to fly to the United Kingdom is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $968.

Reviews of the top 5 airlines serving from Reagan-National to the United Kingdom

 
Need help choosing which airline to fly with from Reagan-National to the United Kingdom? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 9076 reviews
8.1Crew
7.1Entertainment
6.6Food
7.7Boarding
7.3Comfort
Airline reviews

Starlink wifi on the Embraer E175 is an excellent experience. I was able to connect and work from IAD all the way to approach into BTV.

10.0 ExcellentDavid, Nov 2025
IAD - BTV
Read more United Airlines reviews

Starlink wifi on the Embraer E175 is an excellent experience. I was able to connect and work from IAD all the way to approach into BTV.

7 hours delayed due to operational issues on United’s end. Basically laziness.

Short flight but an "eager to help" crew made the journey more enjoyable!

During booking, I kept trying submitting my payment from the Mexican website and it didn't work. After I had the idea to change it to the Canadian website, it worked but I had to be charged the equivalent of 50 CAD more. I received the clear instruction that I would only be able to check-in at the airport and that it was impossible to select a seat 24 hours before departure, that I had to pay 144 CAD to do so, although not only was I able to check-in 24 hours before departure, but I could have selected my seats for free then. All in all, I almost threw $200 out the window due to misleading information. Besides, the app kept crashing, the information to get to the gate on the app was inaccurate, my gate was switched and I was only informed once in the air (luckily I had noticed the departure pannel), I was not addressed in my language beforehand and even if I tried I was immediately answered in English (which meant the crew understood but didn't want to answer accordingly), there was only one snack & beverage service on my medium haul flight and no beverage service on my short haul flight. To be fair, the planes were comfortable, the crew apart from the language issue was helpful, dynamic and engaging, the plane was clean and the directions were clear and direct. United has a lot of potential to be one of my favourite airlines, but the devil is in the details and a lot of them missed the target.

Better WiFi. I cannot understand that in 2025, United is so behind on a technology that is now a necessity and still painfully unreliable, slow and keeps disconnecting.

Great service on board. Boarding a bit slow due to process. Food was pretty average.

Very small cramped plane for an international flight. Everything else was good, but it was maybe the smallest comfort-wise I've ever been on for longer than 3-4 hours and the trip was 7.5

Flight was delayed 3 hours. No food and drink vouchers was provided. They offered a mini pretzel bag and water .

Staff was rude. Didn’t give water for 2 hours. Worst service

Was on time until within 1 hour of flight-how does that happen? Staff very friendly.

We were told the flight was delayed 5 times, then it was moved to the next day.

Flight delay was communicated before leaving for airport which caused it to be a non-event. Great flight and crew!

The flight attendant, a black woman with curly hair who sat near Row 21, was wonderful and kind.

Disliked having to wait a little longer to disembark from the plan when we landed in London

Food should be better quality. Video screens have poor resolution and the library of movies is poor. The other airlines are much better.

The trip was smooth but the crew were very abrupt, snatching things before finished and being quite snappy when asked questions.

My wife and I love to travel, so we fly a lot. We've already logged 381,075 miles and with practically every major airline. But this flight was very disappointing. It started off well, with no delays and a new plane. But when lunchtime approached, all that good impression was ruined. Instead of white tablecloths, we were offered small, dark placemats, which, as it turned out, were perfectly adequate for the food. All the food offered—and my wife and I only took fish, and the meat—was not just bad, it was downright disgusting and not heated enough. The same applies to the appetizers. This was the first time in many years of traveling that we've been offered such disgusting food.

Lost luggage stuck no clothes and no word after 2 days leaving on cruise no stuff or clothes

Don’t know they cancelled the flight day before I was to leave. They sent a email at 9:00 pm at night saying they cancelled. That is the smooth way to say we don’t want your business! I think they didn’t have enough people booking so they cancelled the flight! It’s all about the money anymore there is no honesty in business.

It took way too long to diagnose and solve the problem of a broken crew member cabin seat. Though compensation for the volunteer who left the flight was very kind.

The ride share experience in JFK is terrible. After traveling on a flight, then you need to take a subway to the last stop to get an uber or lyft. Unacceptable. Bad job JetBlue for permitting JFK and Port Authority to do this to your passengers.

Checking In on JetBlue site was impossible. It hung up on REAL ID. Even my Global Entry did not help. Luckily, on Kayak site it was a breeze. Entire flight the temperature was COLD! Otherwise the crew was great!

The flight was two hours late due to a computer fault and resulting maintenance. Nothing was offered as compensation beyond bottles of water during the time we were deplaned and waiting in the terminal.

Very pleasant flight attendants. Gate crew rather loud chatting with each other.

Four plus hour flight delay in New York caused us to take off after 11:30pm. We didn’t arrive at our hotel until five hours after check in. Started the trip off feeling exhausted.

Plane was in bad shape. TV’s and WiFi didn’t work. Plane need a refresh. Not enough room for bags.

There was a fowl odour coming from the lavatory the entire flight

Everything was great. I liked the text updates so that I never miss a gate change & I have all the latest info.

I don’t usually fly budget airlines or airlines in the United States. It was as good as any other airline. The seats are comfortable and the airline attendants are not rude & surly. Very nice flight (s).

No internet on a flight over three hours in this age is criminal. Staff inattentive and dismissive

Everything went smoothly, and we even arrived 40min earlier than scheduled, on an Orland-Madrid route.

The staff was very nice and helpful. Some of the best crew I have met.

Suddenly, I don't find my flight back on the app Help Ticket 0757345716866 Hoeflich Flight back Sunday ib5333 Ib2629 Ib4268

Was all good.l including a sofdrink. AA improved significantly. There was no entertainment.

I've taken British Airways before and it has been great. On this trip to Spain and Portugal we had two BA flights. On both flights we were taken by bus from the terminal out to the plane on the tarmac. There were many older folks on these flights, and to ask people in their 70s to lug their carry-on and personal items up the long mobile staircase to the plane entrance, is very disturbing. I won't be taking British Airways in the future. Many people on these flights were very unhappy.

The food on the flight was of marginal quality. Small bits of chicken, instant mashed potatoes and some carrots. The rolls were very dry, nearly inedible. The seats were quite small and didn’t allow for any shifting of position during the flight. There was limited leg room.0

The seats are so small that you can barely move at all. Don't try to eat with utensils in your seat either - you will elbow your neighbor in the face. Miserably small and I swear they are shrinking every time I fly. Food was meh (per usual), but at least there is free alcohol on an overseas flight. Doesn't make up for sitting in a torture chamber while hurtling through the air with hundreds of fussy people, but it's something. Entertainment options (movies, shows) are okay, nothing special, but at least there are screens, because most of the seats in these large planes do not have adjustable lighting - or air control - that you can get to, it's too high to reach - which makes reading impossible. Zero stars, AA.

Terrible customer service. I booked business class and the counter agent didn’t bother asking me about any choice or preferred seat, basically assigned me that last seat and couldn’t even answer if it was a business class seat. Also iberia lost my suitcase on my flight from JFK to MAD with the layover in BCN. Useless customer service at the counter. Thank goodness I happened to check the baggage claim area of the next flight in…there it was.

Disaster. Downgraded. Zero apology. No effort or coordination between gate and crew. Awful seat blocked by door emergency slide box. Iberia is a mess. App never works. Avoid this airline.

We departed late but made up most of the time in flight. Our ticket was pure economy, so it wasn’t anything fancy; however, I heard that we arrived in Madrid at the exact same time that First Class passengers arrived! Overall, our experience was similar to what we had on other American Airlines transatlantic flights - good value at a reasonable price. We were even able to get our carry-on baggage onto the plane without needing to gate check it.

The flight was excellent in World Travellor plus. Well worth the extra money. Boarding at Phoenix was the usual poorly organized event. Very stressful.

Although business class, the seating was really cramped. The food was so so.

Smooth trip no turbulence which is always a bonus for me lol! In cattle class so an element of being a bit squished (but not as bad as other shorter haul airlines) smaller plane than the one we flew out on and entertainment system wasn’t as modern but still definitely passed the time. Lovely crew x

Flying on the Boeing 787 from Seattle to London was everything that I expected. Every thing was great.

Seat pitch is not enough to eat comfortably. When seat in front is reclined, your screen comes closer to your face. Ryanair seats are actually more comfortable.

The leg from Portland to Heathrow was great for a business class ticket. The BA leg from Heathrow to Lisbon was terrible. Basically coach seating with an empty seat between you and next passenger. Absolutely no leg room. Should not have been charged for business class and it was a 3 hour flight.

The flat beds. Other than that, the place was not clean.

Moved me away from my family and refused to fix it.

I have always been pleased with their service. Would not change a thing

Seating and food was the worst we have experienced in 35 years of traveling for both personal and busines .

Everything you need to know for your flight from Reagan-National to the United Kingdom

Information on your arrival and departure airports